Abstract
In the article, a motion of a large solid spherical aerosol particle in a single-component gas has been investigated. Mathematical modeling has been performed The obtained formulas allow determining the time of the particle transition into the final states, and also the distances travelled by the particle. The numerical evaluations solved with the use of these formulas demonstrate that for large initial Reynolds numbers the particle stopping distance can be significant. considering inertia, particle radius and resistance of the carrier gaseous medium to its motion.
Highlights
The composition of natural, atmospheric, and industrial aerosols surrounding us [1,2,3,4,5,6,7] may include various types of solid aerosol particles [2,3,4,5,6]
A comprehensive study of the various properties of aerosol particles, including the laws of their ordered motion in gaseous media, is of great scientific and practical interest [2,3,4,5,6]. They often deal with the ordered movement of aerosol particles that occurs under the influence of fairly well-studied external forces [6,9]
Knowing the formulas allowing, at known aerosol particle sizes and initial Reynolds numbers Rei, directly assessing the time the particles take to transition from states with a known initial number Rei to states with smaller Reynolds numbers Ref, as well as the distances traveled by particles, in particular, stopping distances, is of significant interest when assessing aerosol particle motion for practical applications considering the impact of the gaseous medium resistance
Summary
The composition of natural, atmospheric, and industrial aerosols surrounding us [1,2,3,4,5,6,7] may include various types of solid aerosol particles [2,3,4,5,6]. They often deal with the ordered movement of aerosol particles that occurs under the influence of fairly well-studied external forces [6,9] Such forces include, for example, and of molecular nature, thermophoretic [5,6,8,9,10,11,12,13,14,15,16,17,18,19,20,24] and photophoretic [15,19,21,22,23] forces. Knowing the formulas allowing, at known aerosol particle sizes and initial Reynolds numbers Rei, directly assessing the time the particles take to transition from states with a known initial number Rei to states with smaller Reynolds numbers Ref, as well as the distances traveled by particles, in particular, stopping distances, is of significant interest when assessing aerosol particle motion for practical applications considering the impact of the gaseous medium resistance. The formulas provided below allow, at the initial Reynolds numbers 0 < Rei≤ 1000, assessing the motion of large solid spherical aerosol particles with consideration of how their motion is impacted by the gaseous medium resistance, and by their radius
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